HVAC Repair in Greater San Antonio Area

An HVAC system that turns on but doesn’t heat usually has an ignition or airflow problem preventing the furnace from making or moving warm air. Most often the burner never lights or the blower can’t push enough air through a dirty system, so the vents stay cool. If the blower runs but supply vents stay room‑temperature, the ignition sequence likely failed even though the thermostat called for heat. Our technicians see this often across the San Antonio area when heaters start up after long cooling seasons.

Check a few quick items before calling:

• Thermostat is set to Heat and above room temperature.
• Filter is clean and supply/return vents are open to maintain airflow.
• Pilot light/ignition issues: yellow or flickering pilot, repeated clicking, or frequent cycling.
• Unusual smells (musty or burning) or a sudden jump in energy bills.

If these checks don’t restore heat, schedule a professional diagnosis to prevent damage and restore safe operation.

Updated: 2026-03-31

Need help in Lackland AFB, TX? Call (210) 489-1389 or book online. “Within short order he had it running correctly again.” — Javier G.

An air conditioner that won’t turn on with the thermostat set to Cool usually points to a power problem, a control issue, or a safety lockout in the system. The most common homeowner causes are incorrect thermostat settings or dead thermostat batteries, followed by a tripped breaker or a backed-up condensate drain that trips a shutoff switch. Our technicians routinely see this and can quickly isolate whether it’s a simple control fix or a failed part. We serve the greater San Antonio area and stock thousands of parts for rapid same‑day repairs, with 24/7 emergency service when heat won’t wait.

Before you call, check these basics once:

• Confirm the thermostat is on Cool/Auto, set a few degrees below room temp, and replace batteries.
• Reset the AC breaker one time; don’t keep resetting a breaker that trips again.
• Look for water at the indoor unit or a clogged drain; a float switch will stop cooling when water backs up.
• If the indoor blower starts but the outdoor unit doesn’t, a starter component or control likely needs a technician.

If you smell burning, see smoke, or the breaker trips again, turn the system off and call a licensed pro.

Updated: 2026-03-25

Need help in Jbsa Ft Sam Houston, TX? Call (210) 489-1389 or book online. “Sergio came out... fully diagnosed it from top to bottom. Within short order he had it running correctly again.” — Javier G.

Your AC can run but not cool due to a clogged filter, dirty coils, low refrigerant from a leak, a faulty thermostat, blocked vents, or a condensate drain issue. Elmer’s repairs all makes and models and offers 24/7 emergency AC service in the San Antonio area. Our tune-up cleans coils, filters, blowers, and drain lines to improve cooling. If your system is over 10 years old, we can provide a free replacement estimate and a free second opinion.

Quick checks:

• Replace or wash the air filter.
• Set thermostat to Cool and lower the setpoint.
• Open all supply vents and clear returns.
• If airflow is weak, turn the system off and call.

Updated: 2025-12-28

Need help in Castroville, TX? Call (210) 489-1389 or book online.

"Within short order he had it running correctly again." — Javier G.

Rather than a one-size-fits-all “$5,000 rule,” our technicians advise repair or replacement after an on-site diagnosis and estimate. We consider current system condition, parts availability, safety, and your comfort goals. If your HVAC system is over 10 years old, it might be time to consider a full air conditioning replacement. We offer free second opinions and free estimates to compare options in San Antonio and nearby cities.

Quick checks:

• Compare repair cost vs. remaining lifespan.
• Note recurring breakdowns or uneven cooling.
• Review any financing or membership savings.

Updated: 2025-12-28

Need help in Castroville, TX? Call (210) 489-1389 or book online.

"Within short order he had it running correctly again." — Javier G.

Many homeowners ask about a “$5,000 rule” for HVAC decisions. Elmer’s doesn’t use a one-size rule; we recommend an in‑home diagnosis and a cost comparison. If your system is over 10 years old, consider a full replacement. We serve San Antonio, Houston, and Dallas–Fort Worth. We provide free estimates, free second opinions, and manual heat‑load sizing. For repairs, we offer 24/7 AC emergency service and stock parts for same‑day fixes. Financing and repair coupons can reduce your costs.

Updated: 2025-12-28 00:00:00

Need help in Castroville, TX? Call (210) 489-1389 or book online.

"Within short order he had it running correctly again." — Javier G.

Emergency HVAC repair is rapid, urgent service to restore your AC or heat when comfort or equipment is at risk. Elmer’s offers 24/7 emergency AC repairs in Texas. It’s needed if the system won’t cool or heat, won’t start, blows warm air, trips breakers, leaks water, has frozen coils, or shows electrical or ignition problems, including thermostat failure. We stock thousands of parts for same-day fixes. Home Comfort Club members get service within 24 hours. Service available in San Antonio and New Braunfels.

Updated: 2025-12-28

Need help in Castroville, TX? Call (210) 489-1389 or book online.

"Within short order he had it running correctly again." — Javier G.

Same-day HVAC repair with Elmer’s Home Services is quoted after an on-site diagnosis. Final cost depends on the issue, needed parts, and whether service is after-hours. We offer 24/7 AC emergency service. You can reduce costs with active coupons ($75 off or $50 off HVAC repairs, exp. 2025-12-31). Home Comfort Club members get 10% off repairs, reduced after-hours rates, no service fee 7am–6pm (Mon–Fri), and guaranteed service within 24 hours in San Antonio and nearby areas.

Updated: 2025-12-28 00:00:00

Need help in Castroville, TX? Call (210) 489-1389 or book online.

"Within short order he had it running correctly again." — Javier G.

HVAC technicians at Elmer's Home Services don’t bill by the hour for repairs; we diagnose first and give you an upfront, flat repair price before work begins. Most repair costs vary by the part that failed and how complex the fix is, so a technician’s on-site evaluation sets the true price. We stock thousands of parts for same-day solutions, and flat-rate pricing means you’re not penalized if a job takes longer or finishes faster. Homeowners near Jbsa Lackland, TX get the same straightforward pricing approach from our locally based team. For maintenance, our Elmerization tune-up is $129, and a current special offers $50 off HVAC repairs.

• What drives repair price: specific failed part(s)
• System type/age and accessibility of the unit
• Complexity of diagnostics or repair steps
• After-hours or emergency timing Schedule a diagnostic visit to get a firm repair quote approved by you before any work starts.

Updated: 2026-03-11

Need help in Jbsa Lackland, TX? Call (210) 489-1389 or book online. "He got right on it and fully diagnosed it from top to bottom... Within short order he had it running correctly again." — Javier G.